I went to the GP yesterday, with a variety of (non serious) complaints. We decided (pending further tests), that it's probably just down to depletion of my body's resources, after pregnancy and a year of breastfeeding.
So my primary treatment is to eat more and eat better. I thought I was doing pretty well, but apparently not.
I just checked out the Qld Government Nutrition Guidelines, and the standard whilst breastfeeding is 5 serves of fruit and 7 serves of veggies per day! I'm pretty sure I haven't been hitting that target very often...
Just as well we get on well with our local fruiterer.